Epson R300 Problem UPDATE

Problem

I posted a little while ago, about how my Epson R300 would print immediately
when I wanted to print something (even a page of black text) but if I wanted
to print a second job it would sit there for 5 minutes before printing that
second job. The Epson tech support said I should uninstall and reinstall
drivers, which I did, and that didn't help. It still prints immediately for
the first printing, and then waits 5 minutes.

Anyway, I have some more information. I have an HP laserprinter as well as
a Kodak Printer Dock. If I print something with the R300, and then try to
print with the Laserprinter or the Printer dock, IT ALSO WAITS 5 MINUTES!

So somehow the R300 is causing a 5 minute delay in whatever Windows uses to
control the printers. I tried fiddling with the spooling settings that
someone posted before, but that didn't work either.

Solution

1. try this, if you are using winxp, check what port that your r300 is using from the printer properties(usb001 or whatever) take note of it then delete the icon of r300 from printers and faxes but make sure that there's no pending documents in the queue. and then go to server properties select drivers, if you can see r300 in the list attempt to remove it from there. after that in the same window go to port and delete the port that your r300 is using. go to the device manager and expand universal serial bus controllers and uninstall the usb printing support. then finally uninstall epson printer software. from here do the reinstallation..
2. HP software and Epson software seem to conflict when they are both connected. To see if this is the case, try disconnecting all other printers from the computer except for the Epson.Try doing multiple prints now
3. Use Task Manager to see what process is busy. If the hard drive is busy,
   use Filemon from
   http://www.sysinternals.com/nt w2k/utilities.shtml to see what files are
   being accessed/written.
   Try disabling your virus checker.
4. I assume you are using a USB connection with the R30. What else do you
   have connected via USB? Have you tried to use the R300 on its own with
   it connected directly to the computer USB plug without any router or
   other USB wiring? (Direct cable from computer to printer). If so, is
   the result the same?
   
   If not, slowly plug in each USB peripheral you use, and when the system
   goes into this 5 minute wait again, that's either the problem peripheral
   (conflict or sleep/delay built into the software) or you have reached
   some limit of your USB system.
   
   Have you checked the power management for the USB connection via XP?
   
   (Device Manager, USB Controllers, Properties, Power Management)
   
   Try to disable the Power Management 'feature' in XP and see if that helps.